 PREFIX : <http://sws.ifi.uio.no/vocab/npd-v2#>
 PREFIX isc: <http://resource.geosciml.org/classifier/ics/ischart/>
 PREFIX nlxv: <http://sws.ifi.uio.no/vocab/norlex#>
 PREFIX rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#>
 PREFIX npd: <http://sws.ifi.uio.no/data/npd-v2/>
 PREFIX void: <http://rdfs.org/ns/void#>
 PREFIX xsd: <http://www.w3.org/2001/XMLSchema#> 
 PREFIX owl: <http://www.w3.org/2002/07/owl#>
 PREFIX ex: <http://example.org/ex#>
 PREFIX quest: <http://obda.org/quest#>
 PREFIX diskos: <http://sws.ifi.uio.no/data/diskos/>
 PREFIX nlx: <http://sws.ifi.uio.no/data/norlex/>
 PREFIX ptl: <http://sws.ifi.uio.no/vocab/npd-v2-ptl#>
 PREFIX npdv: <http://sws.ifi.uio.no/vocab/npd-v2#>
 PREFIX geos: <http://www.opengis.net/ont/geosparql#>
 PREFIX sql: <http://sws.ifi.uio.no/vocab/sql#>
 PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>
 PREFIX dc: <http://purl.org/dc/elements/1.1/>
 PREFIX diskosv: <http://sws.ifi.uio.no/vocab/diskos#>
SELECT *
WHERE {

   [ ] a npdv:FieldMonthlyProduction ;
       #npdv:productionForField [ npdv:name ?field ] ;
       npdv:productionYear         ?year;
       npdv:productionMonth        ?month;
       npdv:producedCondensate     ?con ;
       npdv:producedGas            ?gas ;
       npdv:producedNGL            ?NGL ;
       npdv:producedOil            ?oil ;
       npdv:producedOilEquivalents ?maxOE  .

   FILTER(?gas < 100)
} 
